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Abstract:
在序批式(sequencing batch reactor,SBR)反应器中,通过分段厌氧-好氧(厌氧后排水)运行方式,在以葡萄糖为碳源、P/C比小于2/100的条件下,成功实现了聚糖菌(glycogen accumulating organisms,GAOs)的驯化富集,厌氧段磷酸盐的释放量(phosphorus release amounts,PRA)稳定在1.0 mg·L-1以内,胞内糖原(glycogen,gly)含量是初始阶段的1.2倍.驯化后的GAOs分别以NO-2-N、NO-3-N为电子受体经厌氧-缺氧运行方式,可进行内源反硝化反应过程.GAOs在内源反硝化过程中依次利用胞内的聚 β-羟基戊酸酯(poly-β-hydroxyvalerate,PHV)、聚 β-羟基丁酸酯(poly-β-hydroxyvalerate,PHB)和gly作为内碳源.在22℃时,反硝化聚糖菌(denitrifying glycogen accumulating organisms,DGAOs)以NO-2-N、NO-3-N为电子受体平均比内源反硝化速率分别为0.067 g N·(g VSS)-1·d-1、0.023 g N·(g VSS)-1·d-1,常温短程内源反硝化速率约是全程内源反硝化速率的3倍.
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化工学报
ISSN: 0438-1157
Year: 2017
Issue: 12
Volume: 68
Page: 4731-4738
Cited Count:
SCOPUS Cited Count: 3
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 5
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: